Finding the Fourth Proportional to 78,336.45, 108,104.42 and 42,526.49

Step by Step Solution

1. Step 1: Write the proportion equation
   78,336.45 : 108,104.42 = 42,526.49 : x
2. Step 2: Convert to fraction form
   78,336.45/108,104.42 = 42,526.49/x
3. Step 3: Cross multiply
   78,336.45x = 108,104.42 × 42,526.49
4. Step 4: Simplify right side
   78,336.45x = 4,597,301,101.88
5. Step 5: Solve for x
   x = 4,597,301,101.88/78,336.45
6. Step 6: Final answer
   x = 58,686.62